1936228 - Port bug 1903302 - Ship dxcompiler.dll and dxil.dll

Status: RESOLVED FIXED

(Thunderbird :: Upstream Synchronization, task)

Description

[Richard Marti (:Paenglab)]

M-C is planning to enable DXC by default. At least then we need to follow with loading this DLLs.

Comment from M-C patch:
This patch is the first step towards shipping dxcompiler.dll and
dxil.dll (also referred to as DXC) on Windows for WebGPU.

With this patch DXC is disabled by default at build time and can be enabled
on x86_64 by adding ac_add_options --enable-dxcompiler in the mozconfig
file.

Followup work will include in no particular order:

• Enabling DXC by default.
• Enabling DXC for Windows on x86 and arm architectures.
• Using our own DXC builds instead of pulling the dlls from the Windows
  SDK.

Comment 1

[Richard Marti (:Paenglab)]

Attachment: Bug 1936228 - Port bug 1903302 - Ship dxcompiler.dll and dxil.dll. r=#thunderbird-reviewers

Comment 2

[Nicolas Silva [:nical]]

Note that we only plan to use DXC with WebGPU (at least for a while). So if thunderbird does not need/want webgpu support, then you don't have to bundle the dlls. They are loaded dynamically the first time webgpu is used and failure to load the dll should just cause webgpu to not provide access to the GPU adapter.

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/comm-central/rev/77d0eac938f4
Port bug 1903302 - Ship dxcompiler.dll and dxil.dll. r=mkmelin